Self-blowing torch



E. FOLGMAN.

SELF BLOWING TORCH.

APPLICATION FILED JULY 1. I919.

I 1,330,696. Patented Feb. 10,1920.

g' ""i -wfii M aim n r A A g SQ WM ($3 $5 I M lli" t 7 LIJ'IIHI WITNESSE8 g nvvnvron [MANUEL foL am/v A TTORNE rs UNITED STATES PATENT OFFICE.

EMANUEL FOLG-MAN, OF BROOKLYN, NEW YORK.

SELF-BLOWING TORCH.

Application filed July 7, 1919.

To all whom it may concern:

Be it known that I, EMANUEL FQLGMAN, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Self-Blowing Torch, of which the following is a full, clear, and exact description. 1 A

This invention relates generally to a new and improved heater, and more specifically to a heater or torch of the self blowing type.

While it is not broadly new to provide a self blowing torch, those heretofore provided have been objectionable in certain respects, as for instance that too much timeis required in producing an effective heating flame, certain constructions have been unable to provide a supply of oxygen to the heating flame so that Bunsen flame could be provided, and the burner has been of a complex construction, and rendered ineffective when used in drafts.

One of the objects of this invention is to provide a torch constructed to overcome the above objections in torches heretofore provided.

Another object of this inventionis to provide a self blowing torch particularly adapted for use by electrical wiremen in splicing, which is of simple construction, having relatively few parts, arranged to provide an effective heating means.

A further'object of this invention is to provide a self blowing torch constructed to furnish a relatively constant supply of gas, formed from a hydro-carbon fuel, under pressure, so that as the fuel is burned, the gas supplied to the heating flame will not tend to be elongated, due to an increased pressure of gas supplied thereto.

Another object of this invention is to provide a self blowing torch with a gas supply, with its parts so positioned that the gas supplied to the heating flame will carry with it a supply of air, thus permitting a Bunsen flame to be obtained.

A further object of this invention is to provide a torch having its parts so constructed and arranged as to eliminate the possibility of the wicks in the gas generating chamber from becoming charred in case of a complete consumption of fuel in the chamber supplying an independent lighting wick.

Still another object of this invention is to Specification of Letters Patent.

Patented Feb. 10, 1920.

Serial No. 308,968.

provide a self blowing torch, the operation of which is not seriously affected by drafts.

Still another object of this invention is to provide a self blowing torch which will produce an effective heating flame in a relatively short time.

The above objects are accomplished by providing a self blowing torch having a plurality of independent fuel chambers therefor, one of which is provided to furnish fuel to a lighting wick, the other one being used to provide fuel which is gasified and then directed with a supply of air into the lighting flame, thus forming a] Bunsen flame. The chamber supplying the fuel to be gasified is larger than the chamber supplying the fuel for the light. A plurality of in dependent tubes having Wicks therein extend upwardly from the chamber having the gas forming fuel therein, and the ends of said tubes being positioned above the lighting wick so as to be subject to the heat therefrom, so that gas may be generated from the fuel saturated wicks contained therein. A bent, U-shaped tube connects the ends of the gas genera-ting tubes positioned above the lighting flame, the said U-shaped tube being provided with an opening, positioned rearward of the. lighting flame, so that gas escaping therefrom may be directed toward the lighting flame.

Other objects and advantages will be apparent from the following description and the accompanying drawings in which similar characters of reference designate like parts in the several views. In the drawings, showing one of the preferred forms of this invention I Figure 1 is a side elevation of a torch embodying features of this invention.

Fig. 2 i a front elevation of Fig. 1.

Fig. 8 is a sectional view, looking in the direction of the arrows, taken on the line 3 3 of Fig. 1. g I

Fig. 1. is a broken. sectional view, looking in the direction of the arrows, taken on the line 4l-4e of Fig. 2.

In the drawings, the torch is shown as comprising a main receptacle 1, preferably cylindrical in form, having a top 2 and a bottom 3. The receptacle 1, is provided with a partition member a which divides the cylindrical. receptacle into two fuel chambers 55, 6, which we will call an upper fuel chamher for the gas supply 5, and a lower fuel chamber for the light upply. The chamber 5 supplying the fuel for forming gas, is preferably formed larger than the other chamber 6 which supplies the fuel for the source of light and heat, the purpose of which will later be seen. The chambers 5, 6 are provided with outlets T, 8 in the side thereof, and suitable stoppers 9, 10 respectively therefor, the outlets being positioned at the side so that the receptacle may be conveniently filled with fuel by holding the cylindricalreceptacle 1 on its side in a substantially horizontal position with the caps upward. It is to be noted that the covers or caps 9, 10 are not positioned in alinement, but are oflset from each other,this being done in order that the receptacle may be grasped conveniently by the hand, thus eliminating the necessity for the use of a handle. The top 2 and partition 4 are each provided with an opening substantially in the center thereof through which extends a tube 11 having the lower end 12 thereof open and in communication with the chamber (5, the upper end13.:;extending above the top 2 and being bent over one side of the receptacle, the purpose of which will later be explained. The extreme upper end It of the tube is also open; A wick 15 is provided for the tube 11, said ,wick having one end thereof within the chamber 6, the said wick extending upward therefrom through the tube 11 so that the other end thereof extends within the opening 14 of the upper end, so that a. light may be there applied. Another smaller, bent tube 16 is carried within the tube 11, having the lower end 17 thereof in communication with the chamber 6, preferably at the upper part thereof, and the upper end 18 positioned within the upper open end 14 of the tube 11. The tube 16 serves to relieve any excess pressure of gas which may be formed within the chan'iber 6, and it is to be noted in so doing the gas is conducted to the lighting flame, at the upper end of the tube 11, and there used or there consumed. Tube 16 also acts as a vent to admit air to chamber 6.

A cap 19 is provided which is adapted to be positioned over the open end it of the tube 11 and is used to extinguish the flame at the wick. In the construction shown. a band 20 is shown positioned about the upper end of the tube 11, with which the cap 19 frictionally engages. When the cap 1 9 is not in position on the upper end of the tube 11, a suitable knob 21, located at any convenient position on the cover, is provided on which the cap 19 may be placed. A restricted tube 22 is secured to the cap 19, in which is positioned a cleaning rod or pin the use of which will later be explained.

With reference to the outlets 7 8 and the caps 9, 10 thereof, any suitable arrangement of the cap and outlet may be provided. but in the preferred construction each of the outlets is provided with an internal thread. and the cap is provided with an overturned edge 2 lforming an annular groove in which rubber 25 or other suitable material. may be positioned so as to form a tight joint for the outlet necksli', S. The caps are provided with a body portion 26 having an external thread thereon to fit within the threaded outlets.

The top of the cover 2 of the receptacle 1 is provided with a plurality of openings 27, 28 from which extend upwardly tubes 29 and 30, the lower ends of the tubes opening within the chamber 5, and the upper end of the tubes being closed by plugs 31, 32, each of the plugs, however, having a threaded opening extending therethrough communicating with the inside of the tubing, there being provided in the preferred form screws 33, 34: threaded in said openin to form a closure therefor. The purpose of providing an opening in same is to facilitate the insertion of suitable wicks 36 in the respective tubes 29, 30. The method of inserting the wicks therein will be later explained. Each of the wicks 35, 36 extends within the chamber 5 a sul'licient distance so as to be immersed in the fuel contained therein, the other end of the wicks 35, 36 extending through the tubes 29 and 30 respectively and being positioned at the end thereof. The upper ends of the tubes 29 and 30 extend upwardly and are bent to one side so as to be positioned above the open end 14 of the tube 11, and thus to be subject to the heat of a flame there formed. The ends of the tubes 29 and 30 are connected with a restricted U-shaped tubing 37, the closed U-shaped portion of the tube extending rearwardly, so that the ronnecting portion 38 of the restricted tube 37 will be behind a flame formed at the end 14- of the tube 11. An opening 39 is formed in the connecting portion 38 through which the gases formed in the tubes 29. 30 and 37 may be expelled and projected within a flame 4-0 formed below. It is to be noted that, by arranging the tubes 29, 30 and 37 in they manner shown, the flame 40 playing upon the ends of the tubes 29 and 30 vaporize-s a hydrocarbon fuel with which the wicks 35, 36 are saturated, thus forming gas which is forced within and through the restricted tube 37, where the gas or vapors are further heated before being expelled through the opening 39. It is thus seen that in a sense the tube 37 functions as a superheater for the vapors and gases. Another important feature in the construction and arrangement of the tubing is that the outlet 39 receives the gases from independent sources of supply, such as the separate tubes 29 and 30, so that if, for example, a draft or Wind were to blow the flame to one side. so that the tube 29 would not be subject to the heat therefrom, the flame would still play upon the end of the tube 30 and effectively maintain a supply of gas to the outlet 39.

It is to be understood that any suitable arrangement of the gas-forming tubes and the superheating tube connecting the same, having the gas outlet therein and which connects the various tubes, may be provided; the essential feature being that the said tubes be suitably arranged above a source of heat so that the wicks contained therein may be heated to furnish a supply of gas to the outlet 39 irrespective of the exact position of the heating flame which may be altered either by a draft or the position in which the torch as a whole is held.

In order to insert either of the wicks 35 and 36 in their respective tubes 29 and 30, the cap 9 is taken off and the screws 33 and 34 are taken out; the wire is passed within the opening left by the screw, down through the tube into the chamber 5 and fished through the outlet 7, when one end of the wick is fastened thereto, after which the wire is pulled through the tube until the end of the wick is in its proper position at the upper end of the tubes. The wire is now withdrawn from the opening and the screw replaced.

After a period of use, there may be a tendency for the opening 39 to become clogged. When this happens, the direction of the gas issuing therefrom may be altered so as not to be directed toward the flame; or, the said opening 39 may be completely closed. In order to remedy this condition, the cleaning rod or pin 23 is provided with a sharp point, which may be inserted within the opening 39 to clean the same.

An important feature in the arrangement I of the tubes and gas outlet with reference to the flame, is that the heating flame may be conveniently applied to a splice which is required to be made overhead and adjacent to the ceiling. In the use of a torch of this character the service required of the same is intermittent and under ordinary conditions is not burned continuously. Under such operating conditions, it is essential that an effective heating flame be obtained in a relatively short period. A torch constructed in accordance with this invention will produce an effective Bunsen heating flame within about fifteen to twenty seconds after the wick 15 has been lighted. After the ordinary use, the torch will remain cool enough so that the receptacle 1 may be held in the hand, a handle not being necessary.

In the preferred construction, the chamber 5 for supplying fuel through the wicks 35, 36 to the tubes 39, 30 respectively, to be gasifled therein, is larger than the chamber 6 supplying fuel through the wick 15 in the tube 11 for the heating flame. The particular advantage of such an arrangement is that the possibility of carbonizing or char ring the wicks within the gas-forming tubes is eliminated; because by providing less fuel for the chamber supplying the fuel for the flame than for the wicks in the gas-forming tubes, there is no possibility of a flame playing upon the upper end of the wicks 35 and 36 while the chamber 5 has 110 fuel therein, because, of necessity, the fuel in the chamher 6 furnishing the flame would first become exhausted.

In operation, suitable wicks 15, 5 and 36 would be inserted within the tubes 11, 29 and 30 respectively; the chambers 5 and 6 would be filled with a suitable hydrocarbon fuel, such as alcohol, and a light formed at the upper end of the tube 11 at the opening 14;. The heat from the flame thereupon would vaporize or gasify the fuel-saturated wicks in the tubes 29 and 30 thereabove, the gas .being conducted through the tube 38, where it would be further heated. The gas finally issues from the opening 39 and is directed into the flame, carrying therewith a certain supply of oxygen, thus forming a blow torch or Bunsen-burner flame. It is thus seen that there is herein provided a self-blowing torch of simple construction which, in a very short time, furnishes an effective blow'torch flame without the necessity of providing a hand-operated pressure-forming device.

While but one preferred form of the invention has been herein shown, it is understood that changes and modifications may be made therein without departing from the spirit and scope of this invention.

I claim:

1. A self-blowing torch, comprising a receptacle having a plurality of fuel chambers therein, one of said chambers being larger than the other; a tube extending upwardly through the receptacle, having one end opening into the small chamber, the upper end of said tube being open and extending above the top of the receptacle; a plurality of tubes extending upwardly through the top of the receptacle and having the lower ends thereof opening into the larger chamber, the upper ends of the said tubes being closed and positioned above the open upper end of the first-named tube; and a restricted superheating tube having an opening therein connecting the other. closed ends of the tubes.

2. In a device of the character described, a self-blowing torch comprising a receptacle having a plurality of fuel chambers therein, one of said chambers being larger than the other; a tube communicating with a smaller chamber; a wick therein to furnish a flame at one end thereof; a plurality of tubes communicating with the larger chamber, and having one end thereof positioned to be subject to the heat from the flame; and means connecting said tubes, having a gas outlet therein positioned to the rear of the flame, so that gas issuing therefrom will be directed into the flame.

3. A torch, including a self-blowing heating means, a plurality of independent tubes associated therewith to be subject to the heat from said heating means, means for conducting a hydrocarbon liquid to said tubes, and a restricted tube connecting said tubes, said restricted tube also being subject to the heating means, and having a gas outlet therein.

4. A self-blowing torch, comprising a heating means; a plurality of gas-forming means, including independent chambers, arranged to be subject to the heat from the heating means; and another means connecting the gas-forming means and having a gas outlet therein, said last-named means being arranged to be subject to the heat from the heating means, and to direct the flow of gas from the outlet into the heating means.

5. A self-blowing torch, including a heating means comprising a tube, a fuel chamber and a Wick; a gas-forming means comprising a plurality of independent chambers having a fuel-saturated Wick in each of said chambers, said chambers being arranged to be subject to the heat from the heating means; and a tube connecting said gas-forming means and having a gas outlet therein.

6. A self-blowing torch, comprising a heating means, a plurality of independent gas-forming means, subject to the heat and said heating means, and a means connecting said gas-forming means and having a gas outlet therein.

7. A self-blowing torch, comprising a heating means; a plurality of independent gas-forming chambers arranged to be sub ject to the heat from said heating means; and means connecting said gas-forming chambers also arranged to be subject to the heat from the heating means, said lastnamed connecting means having a gas outlet therein, said outlet being located at a position whereby the gas issuing therefrom Will be directed through an air space into a flame of the heating means.

8. A self-blowing torch, comprising a cylindrical receptacle; a partition member therein forming a plurality of independent fuel chambers; a tube extending upwardly from one of said fuel chambers, and having a Wick therein; a plurality of tubes extending upwardly from the other chamber, having the upper ends thereof closed, and arranged to be above the end of said firstnamed tube; and a superheating tube connecting the ends of the independent tubes, the said super-heating tube having a gas outlet therein.

9. A self-blowing torch, comprising a receptacle having a plurality of fuel chambers therein; a tube having a Wick therein in communication with one of said fuel chambers, whereby a heating flame is furnished; a plurality of independent gasforming tubes in communication with the other fuel chamber, having the ends thereof arranged to be subject to the heat from the flame; and super-heating tube connecting the ends of said gas-forming tubes, extending reaiavardly so as to be subject to the heat from the flame, the said superheating tube having a gas outlet therein spaced from the flame so that gas issuing th refrom will be directed into the flame and Will carry a supply of oxygen therewith. V

10. A self-blowing torch, comprising a heating means, a plurality of independent gas-forming means arranged to be subject to the heat from said heating means. and a tube having a gas outlet therein connecting said gas-forn'ling means, whereby a supply of gas is provided from independent sources for the gas outlet.

11. A self-blowing torch, comprising a heating means, a plurality of independent ga s-forming means subject to the heat therefrom, means having a passage therein connecting said gas-forming means, and an out: let therein whereby gas is supplied to said outlet from independent sources.

EMANUEL FOLGMAN. 

